From: Zhang Xiaoxu zhangxiaoxu5@huawei.com
[ Upstream commit ea60a4ad0cf88b411cde6888b8c890935686ecd7 ]
When the dev init failed, should cleanup the sysfs, otherwise, the module will never be loaded since can not create duplicate sysfs directory:
sysfs: cannot create duplicate filename '/fs/orangefs'
CPU: 1 PID: 6549 Comm: insmod Tainted: G W 6.0.0+ #44 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x34/0x44 sysfs_warn_dup.cold+0x17/0x24 sysfs_create_dir_ns+0x16d/0x180 kobject_add_internal+0x156/0x3a0 kobject_init_and_add+0xcf/0x120 orangefs_sysfs_init+0x7e/0x3a0 [orangefs] orangefs_init+0xfe/0x1000 [orangefs] do_one_initcall+0x87/0x2a0 do_init_module+0xdf/0x320 load_module+0x2f98/0x3330 __do_sys_finit_module+0x113/0x1b0 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x46/0xb0
kobject_add_internal failed for orangefs with -EEXIST, don't try to register things with the same name in the same directory.
Fixes: 2f83ace37181 ("orangefs: put register_chrdev immediately before register_filesystem") Signed-off-by: Zhang Xiaoxu zhangxiaoxu5@huawei.com Signed-off-by: Mike Marshall hubcap@omnibond.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/orangefs/orangefs-mod.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/fs/orangefs/orangefs-mod.c b/fs/orangefs/orangefs-mod.c index 85ef87245a87..c8818163e392 100644 --- a/fs/orangefs/orangefs-mod.c +++ b/fs/orangefs/orangefs-mod.c @@ -141,7 +141,7 @@ static int __init orangefs_init(void) gossip_err("%s: could not initialize device subsystem %d!\n", __func__, ret); - goto cleanup_device; + goto cleanup_sysfs; }
ret = register_filesystem(&orangefs_fs_type); @@ -153,11 +153,11 @@ static int __init orangefs_init(void) goto out; }
- orangefs_sysfs_exit(); - -cleanup_device: orangefs_dev_cleanup();
+cleanup_sysfs: + orangefs_sysfs_exit(); + sysfs_init_failed:
debugfs_init_failed: